TOOBOE, the stage name of Ryou Yamasaki, is a Japanese singer-songwriter, composer, and Vocaloid producer whose music blends J-pop with alternative pop, rock, and electronic textures. Known for a dark, emotionally direct style, TOOBOE first built an audience in the Vocaloid and internet music scene, where his compact songs, sharp melodies, and tense, detailed arrangements helped define a distinctive sound. His writing balances intimacy and unease, and his production often gives as much weight to atmosphere as to the main hook.
That background carries into his anime-related work. TOOBOE reached a wider audience with "Jouzai," which was used as the ending theme for Chainsaw Man, connecting his online-rooted catalog with a larger anime audience. The song became an entry point for many listeners and highlighted the crossover appeal of his music, which moves naturally between independent digital music culture and modern anime songwriting. For listeners searching for TOOBOE songs or TOOBOE anime songs, his profile sits at the intersection of J-pop, Vocaloid influence, and darker pop-rock writing.